Located in elegant Belgravia, within London's Royal Borough of Kensington and Chelsea, Holbein Gardens is a 25,000-square-foot office redevelopment and extension of an existing building from the 1980s. Holbein Gardens has been repurposed to provide a high-quality and flexible working environment, while being one of the city's most sustainable office buildings. As well as the building's refurbishment, there is the addition of a fifth floor and together with a striking rooftop terrace, affording views across London’s iconic skyline.

Collaborating with Grosvenor, HDR has contributed to delivering a net zero office building, achieving zero waste and a significant biodiversity gain. Net zero has been achieved in line with UK Green Building Council's Net Zero Carbon Building Framework. Receiving the prestigious Wastebuild Zero 2023 Award, in the Commercial Building Category, as well as Green Building Project of the Year 2023 at the UK Green Business Awards, Holbein Gardens has been recognized as a leading example of how to refurbish existing office stock, while delivering net zero ambitions. Later in 2023, Holbein Gardens was awarded for advancing industry knowledge of steel reuse in buildings by The Institution of Structural Engineers.

HDR was involved in overseeing the strip out and delivered building engineering services; including mechanical, electrical and